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Combined remediation method of moving bed biofilm oxidation-ultrafiltration for landscape water

A technology of moving bed biofilm and joint restoration, applied in the field of landscape water treatment, can solve the problems of loss of function in the stable and orderly evolution of the ecosystem, serious pollution of landscape water, and impact on human sustainable development. Good air effect, solve the nutritional imbalance of microorganisms, and delay the pollution speed and degree

Active Publication Date: 2021-07-13
SHENGSHI LANDSCAPE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, at present, the landscape water body is seriously polluted, the problem of eutrophication is intensified, and the function of the stable and orderly evolution of its ecosystem is constantly being lost, which affects human health and the sustainable development of the ecological environment. Therefore, the restoration technology of landscape water bodies has also become a domestic Hotspots of Foreign Scholars' Research
[0004] Bioremediation and membrane separation technology are commonly used landscape water body restoration technologies. In biological treatment technology, biological filler is a place for microbial growth and reproduction, metabolism and degradation of pollutants. It is the core technology of bioremediation. At present, there are ineffective treatment effects. Stable, greatly affected by water quality and other issues, the treated water still contains small molecule organic matter and microorganisms
However, in membrane separation technology, polymeric organic matter and microorganisms will cause clogging of the filter membrane, resulting in a decrease in water flux, and cleaning with chemicals will introduce new pollutants

Method used

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  • Combined remediation method of moving bed biofilm oxidation-ultrafiltration for landscape water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1As shown, a mobile bed biofilm oxidation-ultrafiltration combined repair method for landscape water bodies, including mobile binding biofilm oxidation systems, ultrafiltration system, three parts of online monitoring system. The moving bed biofilm oxidation system includes a mobile bed biofilm reactor 7, a moving bed biofilm reactor 7 is open, and there is a nutritional sustained release magnetic filler 6, and the moving bed biofilm reactor 7 is connected to a aeration tube. 9, the other end of the aeration pipe 9 is a blower 8; the inlet port of the moving bed biofilm reactor 7 communicates with the water pipe 2, the water port is connected to the water pipe, and the water pipe 2 is provided with a water pump 3, the first valve 4, multi-parameter water quality detector 5, the inlet pipe 2 ends extends to the bottom of the adjustment tank 1. The ultrafiltration processing system includes a super filtered reactor 12, and there is a 20-layer modified PVC ultra...

Embodiment 2

[0052] The structure and connection of the reactor are the same as those of the specific embodiment 1.

[0053] The nutritional sustained release magnetic filler 6 is made of a raw material of the following weight parts: 65 parts of polymethyl methacrylate, 10 hydroxyethyl cellulose, 4 cases of chitosan, 5 alumina, 4 starch, oxidation 5 parts of iron nanoparticles, 2 of vinyl triethoxysilane.

[0054] The preparation method of the nutritional sustained release magnetic filler 6 is as follows:

[0055] (1) Take all raw materials according to the number of parts;

[0056] (2) Dispersion of hydroxyethyl cellulose in deionized water, then polymethyl methacrylate, continued to stir 45 min; wherein the mass of deionized water is 5 times the mass of hydroxyethyl cellulose;

[0057] (3) Sequentium, alumina, starch, iron oxide nanoparticles were sequentially added to the product obtained by step (2), stirred for 45 min, and then add vinyl triethoxysilane, stir mix and mix, and stand 7 h;

...

Embodiment 3

[0066] The structure and connection of the reactor are the same as those of the specific embodiment 1.

[0067] The nutritional sustained release magnetic filler 6 is made of a raw material of the following weight parts: 70 parts of polymethyl methacrylate, 12 hydroxyethyl cellulose, 5 chitosan, 6 alumina, 6 starch, oxidation Three parts of iron nanoparticles, 3 of vinyl triethoxysilane.

[0068] The preparation method of the nutritional sustained release magnetic filler 6 is as follows:

[0069] (1) Take all raw materials according to the number of parts;

[0070] (2) Disperse hydroxyethyl cellulose in deionized water, then add polymethyl methacrylate, continued to stir 60 min; wherein the mass of deionized water is 5 times the mass of hydroxyethyl cellulose;

[0071] (3) Sequentially add chitosan, alumina, starch, iron oxide nanoparticles to step (2), stirring 60 min, then add vinyl triethoxysilane, stir mixing, standing 8 h;

[0072] (4) The product obtained from (3) was dried ...

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Abstract

The invention discloses a moving bed biofilm oxidation-ultrafiltration joint restoration method for landscape water bodies, including three parts: a moving bed biofilm oxidation system, an ultrafiltration treatment system, and an online monitoring system. The moving bed biofilm reaction Nutrient slow-release magnetic packing is arranged inside the device, and a blower and an aeration pipe are connected at the bottom; several layers of modified PVC ultrafiltration membranes are arranged inside the ultrafiltration reactor, and the side of the ultrafiltration reactor far away from the water inlet is connected with a The outlet pipe is connected with a return pipe, the return pipe is provided with a backwash valve and a backwash pump, and the bottom of the ultrafiltration reactor is provided with a sewage outlet; the on-line monitoring system includes 2 multi-parameter water quality detectors, which are installed separately On the inlet and outlet pipes. The invention has high purification effect, stable effluent water quality, real-time understanding of the restoration process, and overcomes the problems of slow biofilm growth and easy pollution of filter membranes in a single treatment system.

Description

Technical field [0001] The present invention belongs to the field of landscape water treatment technology, and more particularly to a mobile bed biofilm oxidation method for landscape water bodies. Background technique [0002] With more and more landscape water elements integrate into the construction of urban public places, artificial lakes, fountain water sears, etc., landscape water, improve the beauty and comfort of the human living environment, and the landscape water body is evaporated, flowing, Infiltration, precipitation, etc. can improve natural climate, slow down the city's heat island effect, and provide growth base for plants while enriching urban landscape diversity. [0003] However, the current landscape water body is seriously contaminated, and the eutrophication problem is aggravated. Its ecosystem has continuously lost, affecting the sustainable development of human health and ecological environment, so the repair technology of landscape water is also a domesti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10C02F1/44B01D71/48B01D65/02
CPCB01D65/02B01D71/48B01D2321/04C02F1/444C02F3/105Y02W10/10
Inventor 洪晓曦游海龙冯子文涂琴袁俊靳亚慧
Owner SHENGSHI LANDSCAPE GRP CO LTD
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